Ametek

AME · United States · Electrical Components & Equipment · matched S&P 500 member. Follow its market-weight contribution.

Historical time machine

Historical observation

20182026

Universe weight

0.113%

12M weight contribution

-0.002 pp

3M weight contribution

-0.000 pp

12M price return

+18.8%

Share of matched S&P 500 members

Monthly observations through Dec 2023

Company price index

A separate dimension from market allocation

Historical observations

Most recent 24 observations at or before the selected month

Month	Market cap	Universe weight	12M weight change	12M return	Above 6M weight average
Dec 2023	$38.1bn	0.113%	-0.002 pp	+18.8%	Yes
Nov 2023	$35.8bn	0.112%	+0.001 pp	+9.7%	Yes
Oct 2023	$32.5bn	0.110%	+0.005 pp	+9.3%	Yes
Sep 2023	$34.1bn	0.114%	+0.012 pp	+31.2%	Yes
Aug 2023	$36.8bn	0.117%	+0.019 pp	+33.6%	Yes
Jul 2023	$36.6bn	0.080%	-0.018 pp	+29.3%	No
Jun 2023	$37.3bn	0.086%	-0.012 pp	+48.3%	No
May 2023	$33.4bn	0.083%	-0.018 pp	+20.3%	No
Apr 2023	$31.7bn	0.107%	+0.001 pp	+10.0%	No
Mar 2023	$33.4bn	0.114%	+0.010 pp	+9.9%	Yes
Feb 2023	$32.6bn	0.115%	+0.010 pp	+9.8%	Yes
Jan 2023	$33.3bn	0.114%	+0.007 pp	+6.7%	Yes
Dec 2022	$32.1bn	0.116%	+0.007 pp	-4.3%	Yes
Nov 2022	$32.7bn	0.111%	+0.004 pp	+5.0%	Yes
Oct 2022	$29.8bn	0.106%	+0.003 pp	-1.4%	Yes
Sep 2022	$26.0bn	0.102%	+0.002 pp	-7.9%	Yes
Aug 2022	$27.6bn	0.099%	-0.006 pp	-11.1%	No
Jul 2022	$28.5bn	0.098%	-0.012 pp	-10.6%	No
Jun 2022	$25.4bn	0.099%	-0.010 pp	-17.2%	No
May 2022	$28.0bn	0.101%	-0.011 pp	-9.5%	No
Apr 2022	$29.3bn	0.106%	-0.007 pp	-5.8%	No
Mar 2022	$30.9bn	0.104%	+0.046 pp	+4.9%	No
Feb 2022	$30.1bn	0.104%	+0.050 pp	+10.7%	No
Jan 2022	$31.6bn	0.106%	+0.044 pp	+21.5%	Yes

Its weight is estimated market cap divided by the total estimated market cap of matched S&P 500 members for the month. This is not an official float-adjusted S&P index weight.